EP1057929A2 - Elastische Walze und Verfahren zum Herstellen einer solchen - Google Patents
Elastische Walze und Verfahren zum Herstellen einer solchen Download PDFInfo
- Publication number
- EP1057929A2 EP1057929A2 EP00105581A EP00105581A EP1057929A2 EP 1057929 A2 EP1057929 A2 EP 1057929A2 EP 00105581 A EP00105581 A EP 00105581A EP 00105581 A EP00105581 A EP 00105581A EP 1057929 A2 EP1057929 A2 EP 1057929A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal
- fibers
- roller
- matrix material
- fillers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0233—Soft rolls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
Definitions
- the present invention relates to a roller, in particular for smoothing of paper webs, with a hard one consisting in particular of metal Roll core, on the outside with an elastic reference layer is provided, which is made of a matrix material and into the matrix material embedded fillers. Furthermore, the invention is based on a Method for producing such a roller directed.
- Elastic rolls of this type are used, for example, when satinizing paper webs.
- An elastic roller forms a press nip together with a hard roller through which the paper web to be processed is passed. While the hard roller has a very smooth surface, for example made of steel or chilled cast iron, and is responsible for smoothing the side of the paper web facing it, the elastic roller acting on the opposite side of the paper web causes the paper web to be leveled and compressed in the press nip.
- the size of the rollers is 3 to 12 m in length and 450 to 1500 mm in diameter. They withstand line forces up to 600 N / mm and compressive stresses up to 130 N / mm 2 .
- plastic coverings maximum temperature differences of about 20 ° C over the The width of the roller is permissible and on the other hand they are for the coating
- plastics used are much higher Thermal expansion coefficients than those commonly used Steel rollers or chill cast rollers, so that by an increase in temperature high axial tensions between the steel roller or chilled iron roller and the associated plastic coating occur.
- the part of the task relating to the roller is based on the invention solved by a roller of the type mentioned in that the Matrix material consists of a soft metal.
- a corresponding invention The method is characterized in that for generation a soft metal is applied to the roll core of the reference layer becomes.
- the reference layer in the roller designed according to the invention In contrast to the reference layers in known smoothing rolls of calenders there is the reference layer in the roller designed according to the invention not of plastic, but of a soft metal, such as Zircon. Because of the high thermal conductivity of metal with a roller designed according to the invention, very rapid heat dissipation of overheating occurring within the reference layer possible so that the occurrence of hot spots and the associated Destruction of the reference layer is reliably prevented.
- both the roll core as well as the reference layer are made of metal and thus essentially have the same coefficient of thermal expansion, none or no significant longitudinal stresses between the roll core and the metallic reference layer, so that for this reason too Occurrence of hot spots and associated detachment or bursting open the reference layer is avoided.
- the required elasticity of the reference layer is determined by a suitable one Choice of an appropriately soft metal guaranteed. Own advantageous additionally the embedded in the metal forming the matrix material Fillers have a higher elasticity than the metal, which increases the elasticity the reference layer, which results from the respective elasticities of the metal as well as the fillers is increased. In contrast to the known ones Rollers therefore have those that have been introduced into the matrix material Fillers not the task of increasing the stiffness of the reference layer on the contrary, to reduce it.
- the metal forming the matrix material at low temperatures in particular at temperatures below approx. 600 ° C, especially at approx. 480 ° C or underneath melting metal.
- a low melting Metal is used to manufacture one designed according to the invention Roller simplified because the material of the roller core as well as that Material of the fillers to be introduced into the matrix material is less Heat resistance than when using at high temperatures must have melting metal.
- the fillers can preferably consist of aramid or the like and / or as synthetic particles, in particular as fibers or as rovings be trained.
- fibers in particular as fibers or as rovings be trained.
- the stiffness or the elasticity of the reference layer can be adjusted via the fibers.
- the fibers can be arranged in one or more, in particular concentrically Fiber layers may be arranged and it is also possible that other fillers, in particular in the form of fibers or powder in the the matrix material forming metal are arranged to the physical To influence the properties of the reference layer in the desired manner.
- the roll core can be used to produce a roll designed according to the invention be coated with the metal, for example the metal is applied to the roller core in the liquid state (can be vapor-deposited, sprayed on or the like). It is also possible to generate the reference layer at least one of a variety existing of metal fibers or of metal-coated fibers Fiber bundles, in particular in several fiber layers one on top of the other Roll core. The metal fibers or the metal coating of the fibers are still largely liquid on their surface Condition so that after winding up a uniform metallic reference layer is present on the roll core.
- the wound in the solid state Metal fibers or metal-coated fibers after the winding process be heated so far that at least their surface is in a liquid State passes, creating the uniform metallic reference layer becomes.
- fibers without metallic Coil the coating on the roller core and after it is done To coat or apply winding to the metal be used.
- the Surface of this reference layer advantageously ground so that the roller gets an extremely smooth surface.
- the figure shows a part of a cut in the longitudinal direction, for example existing steel or cast iron roll core 1, which at its Outside with an elastic cover layer, also shown in section 2 is provided.
- the reference layer 2 consists of a soft metal 3, for example made of zircon, in which a multitude of fibers 4 are embedded.
- the fibers 4 can be used as soft synthetic fibers, for example made of aramid, be trained.
- the frequency increases the fibers 4 radially outwards. Because the fibers 4 have a higher elasticity own than the metal 3, thus has the elastic reference layer 2 its radially outer side has a higher elasticity than in its radial inner area. In principle, however, it is also possible to use the fibers 4 to be distributed evenly over the reference layer 2 or, if desired, to increase the frequency of the fibers 4 radially inwards.
- the matrix material of the reference layer 2 is made of metal and the matrix material in all directions, i.e. in radial, axial and in Continuous, uninterrupted circumferential direction around the fibers 4 Has material webs, is from any point within the reference layer 2 there is a very good heat conduction path in all directions. This causes, that in the event of selective heating within the reference layer, for example due to increased flexing work in the company generated heat is very quickly derived from the point of origin. Such a derivation can be done both in the axial direction and radially to the roll core 1, whereupon the heat from the roll core 1 is discharged radially inwards or axially to the side.
- the occurrence of hot spots is due to the high thermal conductivity of the made of metal reference layer reliably prevented.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Paper (AREA)
Abstract
Description
- 1
- Walzenkern
- 2
- elastische Bezugsschicht
- 3
- weiches Metall
- 4
- Fasern
Claims (10)
- Walze, insbesondere zum Glätten von Papierbahnen, mit einem insbesondere aus Metall bestehenden harten Walzenkern (1), der an seiner Außenseite mit einer elastischen Bezugsschicht (2) versehen ist, die aus einem Matrixmaterial und in das Matrixmaterial eingebetteten Füllstoffen (4) besteht,
dadurch gekennzeichnet,daß das Matrixmaterial aus einem weichen Metall (3) besteht. - Walze nach Anspruch 1,
dadurch gekennzeichnet,daß das Metall (3) ein bei niedrigen Temperaturen, insbesondere bei Temperaturen unter ca. 600° C, bevorzugt bei ca. 480° C oder darunter schmelzendes Metall (3) ist und/oder daß als Metall (3) Zirkon verwendet wird und/oder daß die Füllstoffe (4) eine höhere Elastizität besitzen als das das Matrixmaterial bildende Metall (3). - Walze nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,daß die Wärmeleitfähigkeit des das Matrixmaterial bildenden Metalls (3) größer ist als die Wärmeleitfähigkeit der Füllstoffe (4) und/oderdaß der Wärmeausdehnungskoeffizient des das Matrixmaterial bildenden Metalls (3) im wesentlichen gleich groß wie der Wärmeausdehnungskoeffizient des Walzenkerus (1) ist und/oder daß die Füllstoffe (4) aus Aramid oder dergleichen bestehen. - Walze nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,daß die Füllstoffe als synthetische Teilchen, insbesondere als Fasern (4) oder als Rovings ausgebildet sind, insbesondere daß zumindest ein Teil, insbesondere ein überwiegender Teil der Fasern (4) in axialer Richtung ausgerichtet sind und/oder daß zumindest ein Teil, insbesondere ein überwiegender Teil der Fasern (4) in radialer Richtung ausgerichtet sind und/oder daß zumindest ein Teil, insbesondere ein überwiegender Teil der Fasern (4) statistisch verteilt ausgerichtet sind und/oder daß die Fasern in einer Faserlage oder in radial aufeinanderfolgenden Faserlagen angeordnet sind. - Walze nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,daß zusätzlich zu den Füllstoffen (4) weitere Füllstoffe, insbesondere in Form von Fasern oder Pulver in dem das Matrixmaterial bildenden Metall (3) angeordnet sind, insbesondere daß die weiteren Füllstoffe aus Quarz und/oder PTFE und/oder aus Kohlenstoff- und/oder Glasfasern bestehen. - Verfahren zum Herstellen einer elastischen Walze mit einem insbesondere aus Metall bestehenden harten Walzenkern, der mit einer elastischen Bezugsschicht versehen ist, die aus einem Matrixmaterial und in das Matrixmaterial eingebetteten Füllstoffen besteht, insbesondere zum Herstellen einer Walze nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet,daß zur Erzeugung der Bezugsschicht ein weiches Metall auf den Walzenkern aufgebracht wird. - Verfahren nach Anspruch 6,
dadurch gekennzeichnet,daß der Walzenkern mit dem Metall beschichtet wird und/oder daß das Metall im flüssigen Zustand auf den Walzenkern aufgebracht wird. - Verfahren nach Anspruch 6 oder 7,
dadurch gekennzeichnet,daß zur Erzeugung der Bezugsschicht zumindest ein aus einer Vielzahl von Metallfasern oder von metallbeschichteten Fasern bestehendes Faserbündel, insbesondere in mehreren Faserlagen übereinander, auf den Walzenkern gewickelt wird, insbesondere daß das Faserbündel durch einen oder mehrere Faserroving und/oder durch ein Faservlies gebildet wird, wobei ein Roving jeweils aus einer Vielzahl von nebeneinanderliegenden Fasern der gleichen Art besteht, und/oder daß das Faserbündel oder die einzelnen Fasern vor dem Aufwickeln auf den Walzenkern mit Metall beschichtet werden, insbesondere durch ein Metallbad gezogen werden, oder daß das Faserbündel oder die Fasern im wesentlichen trocken auf den Walzenkern aufgewickelt werden und während oder nach dem Aufwickeln mit dem Metall beschichtet bzw. beaufschlagt werden. - Verfahren nach Anspruch 8,
dadurch gekennzeichnet,daß als Fasern Glas- und/oder Kohlefasern verwendet werden. - Verfahren nach einem der Ansprüche 6 bis 9,
dadurch gekennzeichnet,daß nach Aufbringen des Metalls auf den Walzenkern die Oberfläche der metallischen Bezugsschicht geschliffen wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19925418 | 1999-06-02 | ||
DE19925418A DE19925418A1 (de) | 1999-06-02 | 1999-06-02 | Elastische Walze und Verfahren zum Herstellen einer solchen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1057929A2 true EP1057929A2 (de) | 2000-12-06 |
EP1057929A3 EP1057929A3 (de) | 2001-11-21 |
EP1057929B1 EP1057929B1 (de) | 2004-01-21 |
Family
ID=7910114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00105581A Expired - Lifetime EP1057929B1 (de) | 1999-06-02 | 2000-03-16 | Elastische Walze und Verfahren zum Herstellen einer solchen |
Country Status (3)
Country | Link |
---|---|
US (1) | US6520897B1 (de) |
EP (1) | EP1057929B1 (de) |
DE (2) | DE19925418A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6339883B1 (en) * | 2000-02-25 | 2002-01-22 | Voith Sulzer Paper Technology North America, Inc. | Method of making a roll for paper-making machine |
AT414032B (de) * | 2002-02-04 | 2006-08-15 | Metso Paper Inc | Durchbiegungskompensierte walze einer papier-/pappemaschine oder endbearbeitungsmaschineund verfahren zu deren herstellung |
DE10221172A1 (de) * | 2002-05-13 | 2003-12-04 | Voith Paper Patent Gmbh | Elastische Glättwalze und Verfahren zur Herstellung einer solchen |
DE112007003350A5 (de) * | 2007-02-20 | 2010-02-25 | Siemens Aktiengesellschaft | Bauteil, Vorrichtung zur Verschleißkontrolle für ein Bauteil und Verfahren zur Instandsetzung eines Bauteils |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3852862A (en) * | 1972-11-08 | 1974-12-10 | New Hudson Corp | Roll and method of manufacture |
US4576845A (en) * | 1983-12-15 | 1986-03-18 | Krc Inc. | Thermally conductive base layers for cast polyurethane roll covers |
US5091027A (en) * | 1990-08-15 | 1992-02-25 | Yamauchi Corporation | Process for producing hard roll |
WO1999063154A1 (en) * | 1998-06-02 | 1999-12-09 | Valmet Corporation | Shell for a nip roll |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3807013A (en) | 1972-11-08 | 1974-04-30 | New Hudson Corp | Method of fabricating a composite roll |
DE4321183C2 (de) * | 1992-07-09 | 2002-12-12 | Heidelberger Druckmasch Ag | Feuchtwerkswalze einer Druckmaschine |
US5322970A (en) * | 1993-04-23 | 1994-06-21 | Xerox Corporation | Ceramic donor roll for scavengeless development in a xerographic apparatus |
US5384627A (en) * | 1994-03-21 | 1995-01-24 | Xerox Corporation | Developing unit having ceramic donor roll |
US5520601A (en) * | 1995-03-13 | 1996-05-28 | Eastman Kodak Company | Ceramic rollers for conveyance of photographic films and paper polymeric webs |
KR970007538A (ko) * | 1995-07-04 | 1997-02-21 | 김광호 | 전자사진 방식을 이용한 기기의 히팅롤러장치 |
DE19529711A1 (de) * | 1995-08-11 | 1997-02-13 | Kuesters Eduard Maschf | Walze |
FI110441B (fi) * | 1995-10-23 | 2003-01-31 | Metso Paper Inc | Menetelmä paperin valmistuksessa käytettävän telan valmistamiseksi, paperin valmistuksessa käytettävä tela ja paperinvalmistuksessa käytettävän telan pinnoite |
US5682783A (en) * | 1996-04-23 | 1997-11-04 | Mill Masters, Inc. | Ceramic tubemill roll assembly |
ATE229591T1 (de) * | 1997-04-11 | 2002-12-15 | Metso Paper Inc | Walze für eine papier- oder kartonmaschine und verfahren zur herstellung der walze |
DE19727829A1 (de) * | 1997-06-23 | 1998-12-24 | Haldenwanger Tech Keramik Gmbh | Feuchtwalze für Druckmaschinen und Verfahren zu ihrer Herstellung |
US6290834B1 (en) * | 2000-04-12 | 2001-09-18 | Ceramic Coatings Technologies, Inc. | Ceramic coated liquid transfer rolls and methods of making them |
-
1999
- 1999-06-02 DE DE19925418A patent/DE19925418A1/de not_active Withdrawn
-
2000
- 2000-03-16 DE DE50005064T patent/DE50005064D1/de not_active Expired - Fee Related
- 2000-03-16 EP EP00105581A patent/EP1057929B1/de not_active Expired - Lifetime
- 2000-05-31 US US09/583,726 patent/US6520897B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3852862A (en) * | 1972-11-08 | 1974-12-10 | New Hudson Corp | Roll and method of manufacture |
US4576845A (en) * | 1983-12-15 | 1986-03-18 | Krc Inc. | Thermally conductive base layers for cast polyurethane roll covers |
US5091027A (en) * | 1990-08-15 | 1992-02-25 | Yamauchi Corporation | Process for producing hard roll |
WO1999063154A1 (en) * | 1998-06-02 | 1999-12-09 | Valmet Corporation | Shell for a nip roll |
Also Published As
Publication number | Publication date |
---|---|
US6520897B1 (en) | 2003-02-18 |
EP1057929B1 (de) | 2004-01-21 |
DE50005064D1 (de) | 2004-02-26 |
EP1057929A3 (de) | 2001-11-21 |
DE19925418A1 (de) | 2000-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1057930B1 (de) | Elastische Walze und Verfahren zum Herstellen einer solchen | |
EP1057931B1 (de) | Elastische Walze und Verfahren zum Herstellen einer solchen | |
AT405950B (de) | Pressmantel zur entwässerung einer papierbahn in einem pressspalt einer papiermaschine und verfahren zu seiner herstellung | |
EP1041197B1 (de) | Walze, insbesondere zum Glätten von Papierbahnen, sowie Verfahren zur Herstellung einer solchen Walze | |
EP1041198B1 (de) | Elastische Walze und Verfahren zum Herstellen einer solchen | |
EP1094154B1 (de) | Elastische Walze | |
EP1063351B1 (de) | Elastische Walze und Verfahren zum Herstellen einer solchen | |
EP1041196B1 (de) | Walze, insbesondere zum Glätten von Papierbahnen, sowie Verfahren zur Herstellung einer solchen Walze | |
EP1048782B1 (de) | Elastische Walze und Verfahren zum Herstellen einer solchen | |
EP1057928B1 (de) | Elastische Walze und Verfahren zum Herstellen einer solchen | |
EP1057929B1 (de) | Elastische Walze und Verfahren zum Herstellen einer solchen | |
EP1188859B1 (de) | Elastische Walze | |
EP1116892B2 (de) | Elastische Walze und Verfahren zum Herstellen einer solchen | |
EP1363034B1 (de) | Elastische Glättwalze und Verfahren zur Herstellung einer solchen | |
EP1096068B1 (de) | Elastische Walze sowie Verfahren zur Herstellung einer solchen Walze | |
DE29924899U1 (de) | Elastische Walze | |
EP1063435A1 (de) | Elastische Walze | |
WO2007031235A1 (de) | Beheizbare kalanderwalze |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Kind code of ref document: A2 Designated state(s): DE FI FR GB SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VOITH PAPER PATENT GMBH |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20011217 |
|
AKX | Designation fees paid |
Free format text: DE FI FR GB SE |
|
17Q | First examination report despatched |
Effective date: 20030404 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FI FR GB SE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 50005064 Country of ref document: DE Date of ref document: 20040226 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040310 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20041022 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20050307 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20050309 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20050310 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20050311 Year of fee payment: 6 Ref country code: FI Payment date: 20050311 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060316 Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060316 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060317 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061003 |
|
EUG | Se: european patent has lapsed | ||
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20060316 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20061130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060331 |